Ballpoint pen



FIG. 1 is a perspective view of a ballpoint pen showing our new design;

FIG. 2 is a front view thereof;

FIG. 3 is a bottom view thereof, the top view being a mirror image of the bottom view;

FIG. 4 is a rear view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a left side view thereof; and,

FIG. 7 is a front view thereof in a state of use, with a front tip being exposed and a cap being fitted to a rear end. 

The ornamental design for a ballpoint pen, as shown and described. 